Measuring electric dipole moments of trapped sub-mm particles

@article{Onyeagusi2022MeasuringED,
  title={Measuring electric dipole moments of trapped sub-mm particles},
  author={F. Chioma Onyeagusi and Jens Teiser and Niclas Schneider and Gerhard Wurm},
  journal={Journal of Electrostatics},
  year={2022}
}
2 Citations

Electrostatic Repulsion of Dust from Planetary Surfaces

Surfaces of planetary bodies can have strong electric fields, subjecting conductive grains to repulsive electrostatic forces. This has been proposed as a mechanism to eject grains from the ground. To

References

SHOWING 1-10 OF 23 REFERENCES

Measurements of dipole moments and a Q-patch model of collisionally charged grains

Identical glass spheres of 434 ± 17 μm diameter are charged in collisions among each other. At slow speed some form dimers under microgravity and oscillate within the electrical field of a capacitor.

Precision measurement of tribocharging in acoustically levitated sub-millimeter grains.

This is the first tribocharging experiment to provide complete electric isolation for the grain-grain system from its surroundings and a new experimental method, based on acoustic levitation, which allows to controllably and repeatedly collide two sub-millimeter grains and measure the evolution of their electric charges.

Nondestructive high-resolution and absolute mass determination of single charged particles in a three-dimensional quadrupole trap

A method for the nondestructive high-resolution and absolute mass determination of charged particles is described. It is based on the detection of light scattered from a single particle in an

Sticking and restitution in collisions of charged sub-mm dielectric grains

In microgravity experiments, dielectric spherical glass grains of 225 μm radius with electrical charges between 105 e and 107 e collide with a metal wall. Collision velocities range from about 0.01

Corona discharge of a vibrated insulating box with granular medium

Corona discharges are luminous signs of strong local electric fields allowing a continuous discharge into the surrounding atmosphere. They commonly occur at the ends of conductors at high voltage.

A Smoking Gun for Planetesimal Formation: Charge-driven Growth into a New Size Range

Collisions electrically charge grains, which promotes growth by coagulation. We present aggregation experiments with three large ensembles of basalt beads (150–180 μm), two of which are charged,

Triboelectric Charging of Granular Insulator Mixtures Due Solely to Particle−Particle Interactions

Triboelectric charging is widely observed in granular systems, but the physics underlying the phenomenon is not well understood. A critical challenge for experimental studies of triboelectric

Ionic electrets: electrostatic charging of surfaces by transferring mobile ions upon contact.

The fabrication and characterization of ionic electrets-materials that bear a long-lived electrostatic charge because of an imbalance between the number of cationic and anionic charges are described.

Contact electrification of insulating materials

The electrostatic charge that is generated when two materials are contacted or rubbed and then separated is a well-known physical process that has been studied for more than 2500 years. Contact

Electrical charging overcomes the bouncing barrier in planet formation

In protoplanetary disks, solid objects (so-called planetesimals) are formed from dust. Micrometre-sized dust grains grow into millimetre-sized aggregates. Once those aggregates have diameters